improve css & svg caching (#1278)

skyvern/forge/sdk/cache/base.py

@@ -1,6 +1,6 @@
 from abc import ABC, abstractmethod
 from datetime import timedelta
-from typing import Any
+from typing import Any, Union
 
 CACHE_EXPIRE_TIME = timedelta(weeks=4)
 MAX_CACHE_ITEM = 1000
@@ -8,7 +8,7 @@ MAX_CACHE_ITEM = 1000
 
 class BaseCache(ABC):
     @abstractmethod
-    async def set(self, key: str, value: Any) -> None:
+    async def set(self, key: str, value: Any, ex: Union[int, timedelta, None] = CACHE_EXPIRE_TIME) -> None:
         pass
 
     @abstractmethod